org.drools.bpmn2.legacy.beta1.CallActivityHandler Maven / Gradle / Ivy

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/**
 * Copyright 2010 JBoss Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.drools.bpmn2.legacy.beta1;

import java.util.HashMap;
import java.util.Map;

import org.drools.compiler.xml.XmlDumper;
import org.drools.workflow.core.Node;
import org.drools.workflow.core.node.SubProcessNode;
import org.drools.xml.ExtensibleXmlParser;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class CallActivityHandler extends AbstractNodeHandler {
    
    protected Node createNode(Attributes attrs) {
        return new SubProcessNode();
    }
    
    @SuppressWarnings("unchecked")
	public Class generateNodeFor() {
        return SubProcessNode.class;
    }

    protected void handleNode(final Node node, final Element element, final String uri, 
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
    	super.handleNode(node, element, uri, localName, parser);
    	SubProcessNode subProcessNode = (SubProcessNode) node;
		String processId = element.getAttribute("calledElement");
		if (processId != null) {
			subProcessNode.setProcessId(processId);
		}
		String waitForCompletion = element.getAttribute("waitForCompletion");
		if (waitForCompletion != null && "false".equals(waitForCompletion)) {
			subProcessNode.setWaitForCompletion(false);
		}
		String independent = element.getAttribute("independent");
		if (independent != null && "false".equals(independent)) {
			subProcessNode.setIndependent(false);
		}
    	Map dataInputs = new HashMap();
    	Map dataOutputs = new HashMap();
    	org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
        	String nodeName = xmlNode.getNodeName();
        	if ("ioSpecification".equals(nodeName)) {
        		readIoSpecification(xmlNode, dataInputs, dataOutputs);
        	} else if ("dataInputAssociation".equals(nodeName)) {
        		readDataInputAssociation(xmlNode, subProcessNode, dataInputs);
        	} else if ("dataOutputAssociation".equals(nodeName)) {
        		readDataOutputAssociation(xmlNode, subProcessNode, dataOutputs);
        	}
    		xmlNode = xmlNode.getNextSibling();
        }
	}
    
    protected void readIoSpecification(org.w3c.dom.Node xmlNode, Map dataInputs, Map dataOutputs) {
    	org.w3c.dom.Node subNode = xmlNode.getFirstChild();
		while (subNode instanceof Element) {
			String subNodeName = subNode.getNodeName();
        	if ("dataInput".equals(subNodeName)) {
        		String id = ((Element) subNode).getAttribute("id");
        		String inputName = ((Element) subNode).getAttribute("name");
        		dataInputs.put(id, inputName);
        	} else if ("dataOutput".equals(subNodeName)) {
        		String id = ((Element) subNode).getAttribute("id");
        		String outputName = ((Element) subNode).getAttribute("name");
        		dataOutputs.put(id, outputName);
        	}
        	subNode = subNode.getNextSibling();
		}
    }
    
    protected void readDataInputAssociation(org.w3c.dom.Node xmlNode, SubProcessNode subProcessNode, Map dataInputs) {
		// sourceRef
		org.w3c.dom.Node subNode = xmlNode.getFirstChild();
		String from = subNode.getTextContent();
		// targetRef
		subNode = subNode.getNextSibling();
		String to = subNode.getTextContent();
		subProcessNode.addInMapping(dataInputs.get(to), from);
    }
    
    protected void readDataOutputAssociation(org.w3c.dom.Node xmlNode, SubProcessNode subProcessNode, Map dataOutputs) {
		// sourceRef
		org.w3c.dom.Node subNode = xmlNode.getFirstChild();
		String from = subNode.getTextContent();
		// targetRef
		subNode = subNode.getNextSibling();
		String to = subNode.getTextContent();
		subProcessNode.addOutMapping(dataOutputs.get(from), to);
    }

	public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
		SubProcessNode subProcessNode = (SubProcessNode) node;
		writeNode("callActivity", subProcessNode, xmlDump, includeMeta);
		if (subProcessNode.getProcessId() != null) {
			xmlDump.append("calledElement=\"" + XmlDumper.replaceIllegalChars(subProcessNode.getProcessId()) + "\" ");
		}
		if (!subProcessNode.isWaitForCompletion()) {
			xmlDump.append("tns:waitForCompletion=\"false\" ");
		}
		if (!subProcessNode.isIndependent()) {
			xmlDump.append("tns:independent=\"false\" ");
		}
		xmlDump.append(">" + EOL);
		writeIO(subProcessNode, xmlDump);
		endNode("callActivity", xmlDump);
	}

	protected void writeIO(SubProcessNode subProcessNode, StringBuilder xmlDump) {
		xmlDump.append("      " + EOL);
		for (Map.Entry entry: subProcessNode.getInMappings().entrySet()) {
			xmlDump.append("        " + EOL);
		}
		for (Map.Entry entry: subProcessNode.getOutMappings().entrySet()) {
			xmlDump.append("        " + EOL);
		}
		xmlDump.append("        " + EOL);
		for (Map.Entry entry: subProcessNode.getInMappings().entrySet()) {
			xmlDump.append("          " + XmlBPMNProcessDumper.getUniqueNodeId(subProcessNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL);
		}
		xmlDump.append("        " + EOL);
		xmlDump.append("        " + EOL);
		for (Map.Entry entry: subProcessNode.getOutMappings().entrySet()) {
			xmlDump.append("          " + XmlBPMNProcessDumper.getUniqueNodeId(subProcessNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Output" + EOL);
		}
		xmlDump.append("        " + EOL);
		xmlDump.append("      " + EOL);
		for (Map.Entry entry: subProcessNode.getInMappings().entrySet()) {
			xmlDump.append("      " + EOL);
			xmlDump.append(
				"        " + XmlDumper.replaceIllegalChars(entry.getValue()) + "" + EOL +
				"        " + XmlBPMNProcessDumper.getUniqueNodeId(subProcessNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Input" + EOL);
			xmlDump.append("      " + EOL);
		}
		for (Map.Entry entry: subProcessNode.getOutMappings().entrySet()) {
			xmlDump.append("      " + EOL);
			xmlDump.append(
				"        " + XmlBPMNProcessDumper.getUniqueNodeId(subProcessNode) + "_" + XmlDumper.replaceIllegalChars(entry.getKey()) + "Output" + EOL +
				"        " + entry.getValue() + "" + EOL);
			xmlDump.append("      " + EOL);
		}
	}

}